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  • Rannot, R. C.Bhabha Atomic Research Centre, India (author)

TeV gamma-ray Observations of the Blazar Markarian 421 from January to April 2004 with TACTIC Imaging Element

  • Article/chapterEnglish2005

Publisher, publication year, extent ...

  • 2005
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:lnu-51581
  • https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-51581URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:kon swepub-publicationtype

Notes

  • We have observed the blazar Markarian 421 (z=0.031 ) with the TACTIC gamma- ray telescope having thresholdenergy of 1.5TeV at Mt. Abu Rajasthan India from January to April 2004. Observations were made intracking mode for a total of 84(on) /16 (off-source) hours with its imaging element equipped with a 349- pixelPMTs camera. During this period, we nd an evidence of a TeV gamma-ray signal with a statistical signi-cance of 6.8. The differential energy spectrum derived in the energy range 2 - 9 TeV is well represented bya simple power law, with a differential spectral index of 2.800.20.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Chandra, P.Bhabha Atomic Research Centre, India (author)
  • Thoudam, SatyendraBhabha Atomic Research Centre, India(Swepub:lnu)sathaa (author)
  • Yadav, K.Bhabha Atomic Research Centre, India (author)
  • Venugopal, K.Bhabha Atomic Research Centre, India (author)
  • Bhatt, N.Bhabha Atomic Research Centre, India (author)
  • Bhattacharyya, S.Bhabha Atomic Research Centre, India (author)
  • Dhar, V. K.Bhabha Atomic Research Centre, India (author)
  • Goyal, H. C.Bhabha Atomic Research Centre, India (author)
  • Godambe, S.Bhabha Atomic Research Centre, India (author)
  • Kaul, R. K.Bhabha Atomic Research Centre, India (author)
  • Kothari, M.Bhabha Atomic Research Centre, India (author)
  • Kotwal, S.Bhabha Atomic Research Centre, India (author)
  • Koul, R.Bhabha Atomic Research Centre, India (author)
  • Tickoo, A. K.Bhabha Atomic Research Centre, India (author)
  • Sahayanathan, S.Bhabha Atomic Research Centre, India (author)
  • Sapru, M. L.Bhabha Atomic Research Centre, India (author)
  • Koul, M. K.Bhabha Atomic Research Centre, India (author)
  • Sharma, M.Bhabha Atomic Research Centre, India (author)
  • Bhabha Atomic Research Centre, India (creator_code:org_t)

Related titles

  • In:29th International Cosmic Ray Conference Pune (2005), s. 355-358

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